Datolite - Charcas, Mexico - 7cm long by 3 cm across base
Mineral: Datolite
Locality: Charcas, Municipio Charcas, San Luis Potosí, Mexico
Dimensions: 7cm long by 3 cm across base

Description: A stalactitic cluster of pink globular datolites on an interior core of brownish calcite (certain growth rings of the interior calcite are weakly fluorescent orange).